Riso and Hudson deepen the Enneagram beyond type stickers — levels of development show how the same type looks healthy, average, or destructive, and integration/disintegration lines show stress movement between patterns.

Riso (1999) · Bantam · ISBN 9780553378207

Key principles

  • Nine types — Habitual attention and motivation patterns — map, not prison.
  • Levels of development — Each type spans healthy to pathological expression — level matters more than label.
  • Wings and arrows — Neighbour types and stress/security paths — dynamic, not static typing.
  • Core motivation — Ask what the type pursues and fears — behaviour is strategy.
  • Integration work — Growth moves toward borrowed healthy traits — shame drops when level rises.
  • Folk typology boundary — Popular tool, contested science — use for language, not diagnosis.

Core science

Riso–Hudson system is clinical-popular synthesis — widely used in coaching and therapy, limited experimental typology validation. Pair with The Enneagram (Naranjo lineage) for the earlier clinical frame. Atlas hub: Enneagram — treat as pattern vocabulary, not laboratory fact.

Application

Reach when a member is stuck on I am a Four — shift to level and motivation this week. Open Enneagram on the Atlas shelf for the neutral type map.